package me.msbj.base;

import org.springframework.stereotype.Service;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

/**
 * 封装HttpServletRequest为可重复读取请求
 **/
@Service
public class RepeatlyReadFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        if (request instanceof HttpServletRequest) {
            request = new WrappedHttpServletRequest((HttpServletRequest) request);
        }
        chain.doFilter(request, response);
    }

    @Override
    public void destroy() {

    }
}